Nostratic languages

Nostratic is a hypothetical language macrofamily including many of the language families of northern Eurasia. Though a historically important proposal, in a contemporary context it is typically considered a fringe theory. Although the exact composition varies based on proponent, it typically comprises Kartvelian, Indo-European and Uralic languages; some languages from the similarly controversial Altaic family; the Afroasiatic languages; as well as the Dravidian languages (sometimes also Elamo-Dravidian).

The Nostratic hypothesis originates with Holger Pedersen in the early 20th century. The name "Nostratic" is due to Pedersen (1903), derived from the Latin nostrates "fellow countrymen". The hypothesis was significantly expanded in the 1960s by Soviet linguists, notably Vladislav Illich-Svitych and Aharon Dolgopolsky.

The hypothesis has fallen out of favour since the latter half of the 20th century and has limited degrees of acceptance, predominantly among a minority of Russian linguists. Linguists worldwide mostly reject Nostratic and many other macrofamily hypotheses with the exception of Dené–Yeniseian languages, which has been met with some degree of acceptance. In Russia, it is endorsed by a minority of linguists, such as Vladimir Dybo, but is not a generally accepted hypothesis. Some linguists take an agnostic view. Eurasiatic, a similar grouping, was proposed by Joseph Greenberg (2000) and endorsed by Merritt Ruhlen.